Mhosva Solution yeExcitation System yeDiesel Generator Set

Excitation system inopa magnetic field ikozvino kune rotor winding ye diesel jenareta.Basa rayo guru nderekuchengetedza magetsi ejenareta pane imwe nhanho, kugovera zvine musoro simba rinoshanda uye kugadzirisa kugadzikana kwekushanda kwesimba remagetsi.Zvinogona kuoneka kuti kuchengetedza uye kugadzirisa iyo excitation system yakakosha zvikuru kuve nechokwadi chekushanda kwakachengeteka kwekugadzirwa kwemagetsi.

Nekudaro, isu tinoziva zvakare kuti chero mudziyo unogona kunge uine zvikanganiso mukushanda.Nzira yekukurumidza kuongorora uye kubvisa zvikanganiso ibasa rakakosha uye basa revashandi vekuchengetedza, uye iyo excitation system haisi iyo.Naizvozvo, chinyorwa ichi chinokurukura zvikanganiso zvakajairika uye zvigadziriso zve dhiziri jenareta excitation system.

1. Zvikanganiso zvakajairika uye zviyero zve diesel generator excitation system

1.1 kukundikana kwekunakidzwa

Apo jenereta haigoni kumisa magetsi ekutanga mushure mekugadzirisa hurongwa hunobudisa murairo wekukurudzira, unonzi excitation failure.Nekuti kune mienzaniso yakawanda ye diesel generator excitation system, uye kune kusiyana kwekugadzirisa parameter uye kuratidza zviratidzo.Somuenzaniso, EXC9000 excitation. system, kana jenareta terminal voltage ichiri yakaderera pane gumi muzana yejenareta yakayerwa voltage mukati megumi, iyo regulator inoratidzira skrini inoshuma "excitation kutadza" chiratidzo.

Pane zvikonzero zvakawanda zvekutadza kwekuvaka-up excitation, uye zvinowanzoitika ndezvi:

(1) Pane zvakasiiwa panguva yekuongorora kwekutanga, senge excitation switch, de excitation switch, kuchengetedza chigaro chekuchinja chesynchronous transformer, nezvimwe hazvina kuvharwa.

(2) The excitation circuit yakashata, yakadai semitsetse yakasununguka kana zvikamu zvakakanganiswa.

(3) Regulator kukundikana.

(4) mushandisi haazive nezvekushanda, uye nguva yekudzvanya bhatani rekukurudzira ipfupi, isingasviki 5s.

Solution:

(1) Tarisa mamiriro ebhutsu zvakanyatsoenderana nemaitiro, ongorora zvese zvinongedzo kuti udzivise kusiiwa.

(2) Nyatsocherechedza.Kana iwe uchifungidzira kuti excitation redunhu kukanganisa, tonga nekucherechedza activation ari excitation contactor uye ruzha kudhonza-mukati.Kana pasina ruzha, kungave kutadza kwedunhu;kana iri regulator kutadza, unogona kuona switch yechiratidzo mwenje webhodhi regulator.Kunyangwe iyo yekupinza chiratidzo mwenje inogara yakabatidzwa, uye kana mwenje wakadzimwa, tarisa wiring uye kana iyo komputa komputa command inopihwa.

(3) Mushure mekunge midziyo yave yawedzerwa, tarisa kana nzira yekukurudzira yemunhu-muchina interface yakakodzera, uye tangazve muchina nekugadzirisa mafambiro ekuita kana kushandura chiteshi.

(4) Zvakawanda zvekukundikana mushure mekugadzirisa nekugadzirisa zvakasara kubva pamabasa apfuura.Kana iwe ukarangarira nekushivirira zvawakatama, unogona kuwana zvimwe zviratidzo, senge rotor uye iyo excitation inobuda tambo yakabatana nereverse.

2.2 Kunakidzwa kusina kugadzikana

Panguva yekushanda kwejenareta, kuchinja kwekusimudzira kwakakura zvakanyanya.Semuyenzaniso, data rekushanda kweiyo excitation system inowedzera, asi dzimwe nguva yakajairika uye isina kujairika, uye kugadzirisa kwekuwedzera nekubvisa kunogona kuchiri kuitwa.

Zvikonzero zvinobvira ndezvi:

(1) Kubuda kwechikamu-shift pulse control voltage hakuna kunaka.

(2) Tembiricha yezvakatipoteredza inoshanduka uye zvikamu zvinokanganiswa nekuzunguza, oxidation uye kusashanda.

Solution:

Nechikonzero chekutanga, tanga watarisa kuti magetsi ekusimudzira akajairika, uye tarisa kana kukosha kwakapihwa uye kukosha kwakayerwa (jenareta voltage kana excitation ikozvino) inogadziriswa neiyo adapta unit yakajairika.

Nechikonzero chechipiri, shandisa oscilloscope kuona kana iyo yakagadziridzwa waveform yakakwana, uye wozoshandisa multimeter kutarisa kana kuita kwe thyristor kwakajairika.Rudzi urwu rwekutadza ruchaitika kana iyo waya welding chimiro uye chikamu hunhu huchichinja, uye kugadzirisa uye kugadzirisa kunofanirwa kusimbiswa uye kutsiviwa nenguva.Zvikamu zvinonetsa zvinogona kuderedza mukana wekukundikana kwakadaro.

2.3 Kubvisa manyawi zvisina kujairika

Mushure mekunge jenareta redhiziri radzimwa kubva kune giredhi remagetsi, iyo de-excitation mudziyo unofanirwa kudzikisira yasara magineti mumudziyo wekumhanyisa nekukurumidza.Demagnetization nzira dzinosanganisira inverter demagnetization uye kuramba demagnetization.Zvikonzero zvekutadza kwe inverter demagnetization zvinosanganisira zvikonzero zvedunhu, SCR control pole kutadza, abnormal AC magetsi ekupa, uye idiki yakawandisa inotungamira inotungamira angle yeiyo inverse shanduko chikamu.Naizvozvo, mhinduro ndeyekusimbisa kuchengetedza kwezuva nezuva, kugara uchichenesa guruva mumidziyo, uye wobva waisa conductive paste kune de-excitation fracture, arc yekudzima grid uye zvimwe zvikamu kudzivirira iyo mechanic kubva kujamming.

Kuchengeta excitation system yejenareta yedhiziri mumamiriro ezvinhu akanaka, kunze kwekusimbisa kuchengetedza nekugadzirisa, kubvisa guruva nguva dzose, kuedza uye kuedza, kutarisa kunofanirawo kubhadharwa kuongororwa uye kupfupisa kwezvikanganiso zvinowanzoitika.Kungofanana nezvirongwa zvechimbichimbi, kujekesa nzira dzakajairwa dzekugadzirisa matambudziko uye nzira dzinogona kuderedza zvakanyanya nguva yekunetsa uye kuisa hwaro hwakasimba hwekuona kugadzirwa kwakachengeteka kwedhiziri genset uye kugadzirisa kugadzirwa kwemagetsi.